Prickly shark (VIDEO) Smithsonian Tropical Research Institute This video is under embargo. Please login to access this video. Caption The submarine dives revealed a seamount with an abundance of prickly sharks (Echinorhinus cookei), a deep-sea species of which very little is known, as it is not easy to observe. Credit Ana Endara, Smithsonian Tropical Research Institute Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms. License CC BY-NC-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.